<!DOCTYPE html>
<html lang='en'>
<head>
 <meta charset='UTF-8'>
 <meta http-equiv='X-UA-Compatible' content='IE=edge'>
 <meta name='viewport' content='width=device-width, initial-scale=1.0'>
 <title>Document</title>
 <script src='../public/js/vue.js'></script>
</head>
<body>
  <div id='app'>
    <h1 v-if="isShow">{{message}}</h1>
    <button @click="setShow()">显示隐藏</button>
  </div>
  <script>
  const app = new Vue({
    el: '#app',
    data() {
      return {
        message:'你好啊，李银河！',
        isShow:true
      }
    },
    methods:{
      setShow() {
        this.isShow = !this.isShow;
      }
    },
    computed:{
 
    }
  })
  </script>
</body>
</html>